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+--- Thread: imac g4 memory help (/showthread.php?tid=69267)
imac g4 memory help - goosegunner - 12-29-2008
The imac g4 I picked up the other day says this in the system profile
Dimm0/J22 Empty
Dimm 1/J20 256 DDR SDram PC2700U - 25330
So who knows which slot is the internal?
Because when I open the bottom plate I found a Apple 256meg small dimm. I pulled and reinstall and still says same in the profile.
So what does this mean?
Internal empty or not recognizing?
or
User upgradable slot not being recognized?
gg
Re: imac g4 memory help - Doc - 12-29-2008
> I pulled and reinstall and still says same in the profile.
Try pulling the RAM, NOT reinstalling it and starting up.
If the iMac starts up normally then the user-upgradeable slot might be dead or the RAM out of spec.
Re: imac g4 memory help - StingMe - 12-29-2008
I believe Dimm 1/J20 is the user accessible slot...so you'll have to disassemble the entire thing to see if the internal slot is actually empty or just non-functioning. You might try the Apple Hardware Test and/or another memory test first though. Good Luck!
Re: imac g4 memory help - goosegunner - 12-29-2008
Ok I remove the user accessible ram and found that the imac still boots.
So,
Dimm0/J22 Empty is the user accessible
Dimm 1/J20 256 DDR SDram PC2700U - 25330
This means the Apple brand chip in the user accessible slot is bad or its something with the slot itself.
I don't have the original disks so I can't do the apple hardware tests.
gg
Re: imac g4 memory help - incognegro - 12-29-2008
gg,
i might be able to burn you a hardware test disc, or upload the file - they are small.
Re: imac g4 memory help - goosegunner - 12-29-2008
that would be great, maybe email?
I sent a pm
gg
Re: imac g4 memory help - goosegunner - 12-29-2008
goosegunner wrote:
Ok I remove the user accessible ram and found that the imac still boots.
So,
Dimm0/J22 Empty is the user accessible
Dimm 1/J20 256 DDR SDram PC2700U - 25330
This means the Apple brand chip in the user accessible slot is bad or its something with the slot itself.
I don't have the original disks so I can't do the apple hardware tests.
gg
So I booted of my Firewire drive that has 10.4.10 installed and when I open System preferences it says;
Diagnostics
Last Run 12/29/08 2:50pm
Result: Failed
Failure Type: Memory
Memory Slots: Dimm0/J22
So my guess is the Ram is out of Spec?
gg
Re: imac g4 memory help - StingMe - 12-30-2008
Get yer Apple Hardware Test CD Images here: http://www.info.apple.com/support/aht.html
Re: imac g4 memory help - incognegro - 12-30-2008
that version of AHT for iMac is 1.2.2
Mactracker says the iMac 1.25 Ghz needs AHT 2.0.2.